To enhance the pulse stability and shaping accuracy of fiber laser systems in inertial confinement fusion（ICF）experiments, a precision laser pulse drive system based on a low-noise electrical pulse drive power supply is designed. By integrating ripple suppression circuits and low-dropout linear regulators（LDO）, the system optimizes the noise suppression performance of the electrical pulse drive power supply. Combined with a Mach-Zehnder modulator（MZM）, it achieves highly stable optical pulse output. Experimental results demonstrate that the optimized drive system reduces the electrical pulse ripple amplitude from±20 mV to ±0.5 mV, significantly decreasing optical pulse jitter. When applied to a high-power fiber laser system, the root mean square（RMS）of the output pulse energy decreases from 2.24% to 0.72%, improving stability by 67.8%.